Home / 84,916.32-117,189.77-70,744.56

Finding the Fourth Proportional to 84,916.32, 117,189.77 and 70,744.56

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Solution

The fourth proportional to 84,916.32, 117,189.77 and 70,744.56 is: 97,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,916.32 : 117,189.77 = 70,744.56 : x
  2. Step 2: Convert to fraction form
    84,916.32/117,189.77 = 70,744.56/x
  3. Step 3: Cross multiply
    84,916.32x = 117,189.77 × 70,744.56
  4. Step 4: Simplify right side
    84,916.32x = 8,290,538,406.99
  5. Step 5: Solve for x
    x = 8,290,538,406.99/84,916.32
  6. Step 6: Final answer
    x = 97,631.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.